Home / 18,880.48-28,339.26-10,566.64

Finding the Fourth Proportional to 18,880.48, 28,339.26 and 10,566.64

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Solution

The fourth proportional to 18,880.48, 28,339.26 and 10,566.64 is: 15,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.48 : 28,339.26 = 10,566.64 : x
  2. Step 2: Convert to fraction form
    18,880.48/28,339.26 = 10,566.64/x
  3. Step 3: Cross multiply
    18,880.48x = 28,339.26 × 10,566.64
  4. Step 4: Simplify right side
    18,880.48x = 299,450,758.29
  5. Step 5: Solve for x
    x = 299,450,758.29/18,880.48
  6. Step 6: Final answer
    x = 15,860.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.